Power bank



FIG. 1 is a front, top and right side perspective view of a power bankshowing my new design;

FIG. 2 is another perspective view of a power bank showing my newdesign;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines shown in the figures on the top and bottom surfaces ofthe power bank are used to illustrate stitching and are part of theclaimed design.

The broken lines shown in the figures on the front surfaces representportions of the article which form no part of the claimed design.

CLAIM The ornamental design for a “power bank,” as shown and described.